A proposed Tennessee law would make following the Islamic code known as Shariah law a felony, punishable by 15 years in jail.

A bill introduced by Tennessee state Sen. Bill Ketron, pictured, and Rep. Judd Matheny calls Islamic code a danger to U.S. security.

State Sen. Bill Ketron, R-Murfreesboro, and state Rep. Judd Matheny, R-Tullahoma, introduced the same bill in the Senate and House last week. It calls Shariah law a danger to homeland security and gives the attorney general authority to investigate complaints and decide who's practicing it.

It exempts peaceful practice of Islam but labels any adherence to Shariah law — which includes religious practices such as feet washing and prayers — as treasonous. It claims Shariah adherents want to replace the Constitution with their religious law.

A dozen other states are considering anti-Shariah bills, and there's a federal lawsuit in Oklahoma over one.